Effects of impinging object on geometrical flame features of horizontal jet flames

被引：3

作者：

Aziz, Nur Shahidah Ab ^{[1
,2
]}

Kasmani, Rafiziana Md ^{[2
,3
]}

Samsudin, Mohd Dinie Muhaimin ^{[2
]}

Ahmad, Arshad ^{[3
]}

Abd Jalil, Aishah ^{[3
]}

Ibrahim, Norazana ^{[2
]}

机构：

[1] Univ Teknol MARA, Coll Engn, Sch Chem Engn, Shah Alam 40450, Selangor, Malaysia

[2] Univ Teknol Malaysia, Fac Chem & Energy Engn, Energy Management Grp, Johor Baharu 81310, Johor, Malaysia

[3] Univ Teknol Malaysia, Ctr Hydrogen Energy CHE, Level 2,Block N29, Johor Baharu 81310, Johor, Malaysia

来源：

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION | 2023年 / 177卷

关键词：

Impingement flames; Horizontal jet fire; Line source model; Radiant heat; Trajectory length; LIFT-OFF; DIFFUSION FLAMES; HEAT-TRANSFER; BUOYANCY; FIRES; HYDROGEN; HAZARDS; ENTRAINMENT; PRESSURES; LENGTHS;

D O I：

10.1016/j.psep.2023.07.077

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Accidental release of hydrocarbons can result in jet fires which have the potential to escalate accidental events to catastrophes. Jet fire can impinge on nearby equipment surface or a pasive firewall to make the fire plume temperature and the radiant heat flux complex. The present work experimentally investigated the flame characteristic of free horizontal jet fires and the impingement effect using propane as fuel, with different nozzle diameter, and exit velocity. To analyse the effect of flowrate to jet flame condition, the flow rates range between 30 and 600 g/min were employed with horizontal separation distance from the main source to target was at 0.8m and 1.2-m. The results show that, the incremenet of flame features are faster for free release than impinging release. The presence of object downstream affect the flame profiles at some point. Thus, new correlations were proposed for the prediction of projected flame length and trajcetory length.

引用

页码：1523 / 1530

页数：8

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